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Database Systems Practice Tests

Database Systems Online Tests

Database Keys Multiple Choice Questions (MCQ) PDF Download

The e-Book Database Keys Multiple Choice Questions (MCQ Quiz) with answers, Database Keys MCQs PDF download to study online database systems degree courses. Practice Introduction to RDBMS Multiple Choice Questions and Answers (MCQs), Database Keys quiz answers PDF to study online school courses. The Database Keys MCQ App Download: Free learning app for dbms keys, structure of relational model test prep for best online schools for computer science.

The MCQ A set of one or more attributes that collectively, allow us to identify uniquely a tuple in the relation, is known as: unique key, special key, super key and primary key with "Database Keys" App Download (Free) to study online school courses. Study database keys quiz questions, download Amazon eBook (Free Sample) for applied computer science.

Database Keys MCQ Quiz PDF Download: Database Systems MCQs

MCQ 1: A set of one or more attributes that collectively, allow us to identify uniquely a tuple in the relation, is known as

A) Unique key
B) Special key
C) Super key
D) Primary key

MCQ 2: No two tuples in a relation are allowed to have exactly the same value for

A) Some attributes
B) All attributes
C) Some tuple
D) All tuples

MCQ 3: Specifying tuples within a given relation, are expressed in terms of the

A) Attributes
B) Variables
C) Function
D) Domain

MCQ 4: A superkey may contain extraneous

A) Attributes
B) Keys
C) Instances
D) Entries

MCQ 5: The values of the attribute values of a tuple must be such that they can uniquely identify the

A) Instance
B) Entity
C) Relation
D) Tuple

Database Systems Practice Tests

Database Keys Learning App & Free Study Apps

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Database Management System App (Android & iOS)

ALL-in-ONE Learning App (Android & iOS)

Database Management System App (Android & iOS)

Database Management System App (Android & iOS)

DataBase Management System (MCS) App (Android & iOS)

DataBase Management System (MCS) App (Android & iOS)

Operating Systems App (Android & iOS)

Operating Systems App (Android & iOS)